Ключевые слова: 220, ac, ampere, appliance, background, black, cable, connect, connection, connector, conservation, consumption, contact, cord, current, danger, dangerous, device, double, earth, efficiency, electric, electrical, electricity, energy, equipment, european, hazard, home, house, insert, isolated, outlet, pin, plug, power, safe, socket, standard, supply, technology, volt, voltage, wall, white, wire,